Ex-Situ Synthesis of Polyvinyl alcohol(PVA)-coated Fe3O4 Nanoparticles by Coprecipitation-Ultrasonication Method

International Conference on Chemistry and Material Science 2017

化学;材料科学

Riva'I, Imam^1 ; Wulandari, Ika Oktavia^1 ; Sulistyarti, Hermin^1 ; Sabarudin, Akhmad^1,2

Department of Chemistry, Faculty of Science, Brawijaya University, Jl Veteran, Malang

65145, Indonesia^1

Research Center for Advanced System and Material Technology (ASMAT), Brawijaya University, Malang

65145, Indonesia^2

关键词: Effect of addition;    Ex situ;    Fe3O4 nanoparticles;    Poly (vinyl alcohol) (PVA);    Pva coatings;    Time variations;    Ultra-sonication;    Wave numbers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012065/pdf
DOI  :  10.1088/1757-899X/299/1/012065

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, the synthesis of Fe3O4nanoparticles was done with surface modification using PVA with coprecipitation-ultrasonication method. Time variations and PVA concentrations were added to determine the effect on crystallite size and lattice parameters on the synthesis of Fe3O4-PVA nanoparticles. Fe3O4characterization was done using X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) instruments. FTIR was employed to determine PVA coating on the surface of Fe3O4nanoparticles. The crystallite size and lattice parameters were analyzed using XRD. From the FTIR data, it is known that the interaction between PVA and Fe3O4nanoparticles is characterized by Fe-O-C group at 1100 cm-1region which is characteristic of Fe3O4-PVA nanoparticles, C-H groups of PVA in the range of 2950 cm-1wave number, C-C of PVA regions of wave number 1405 cm-1, Fe3O4and Fe3O4-PVA samples are in the range of 565 cm-1. In addition, the variation of ultrasonication time and the addition of PVA concentration have an effect on the crystallite size change and the lattice parameter observed from the XRD data. The use of ultrasonication time will affect the size of the crystallite become smaller and the grating lattice parameters obtained are wider. The effect of addition of PVA showed that higher concentration of PVA resulted in smaller crystallite size and larger lattice parameters. These results indicated that ultrasonication time and addition of PVA concentration greatly affect the characteristics of nanoparticles.